SS7 Enhancements

Signaling Transport (SIGTRAN) is a suite of protocol standards that provide signaling transport over an IP Network. It supports SS7, ISDN, and other protocols. The SIGTRAN protocols offer additional features that are not supported by traditional SS7. A SIGTRAN protocol being requested by cellular operators is MTP3 User Adaptation layer (M3UA) which is implemented in the CSP in this release.

This features increases the simultaneous TCAP dialogs for the SS7 Series 3 card from 8k to 32k, and increases simultaneous TCAP operations from 24k to 96k.

This increase benefits IN applications in which TCAP dialogs are maintained for the whole call period as well as call periods when hold time is long and traffic is high.

Refer to the following sections in the Developer’s Guide: Common Channel Signaling, in the SCCP TCAP chapter:

See also the Developer’s Guide: Common Channel Signaling, chapter SS7 PPL Information, SCCP SCRC configuration bytes.

This feature upgrades ITU and ANSI TCAP implementation to comply with more recent ITU/ANSI TCAP standards, and upgrades ANSI SCCP implementation to support the more recent ANSI/Telcordia SCCP standards. Below are listed the versions supported with this release:

This information also appears in Developer’s Guide: Common Channel Signaling, chapter SCCP/TCAP, in the section ITU and ANSI/Telecordia Standards - Versions Supported.

This implementation makes use of the second Ethernet port on the CCS I/O Series 3 card to segregate host traffic and M3UA traffic.

Refer to the Developer’s Guide: Common Channel Signaling, chapter SS7 Introduction, section Dual Ethernet Port.

This feature adds the SS7 Carrier Identification Code (CIC) number to the Request for Service (RFS) message and the PPL event indications for the span channel. By providing direct correlation between the CIC and the Span/Channel, this feature enables significant efficiencies for billing and troubleshooting.

Refer to Developer’s Guide: Common Channel Signaling, chapter SS7 Introduction, section Adding CIC Information.

Internet Protocol. Part of the TCP/IP family of protocols used to route messages and tracks the addresses of nodes.

See Signaling System Number Seven.

See Integrated Services Digital Network.

Message Transfer Part level 3 - network level

CCS. Network architecture using SS7 protocol for the exchange of information between telecommunications nodes and networks on an out-of-band basis.

See Transaction Capability Application Part.

International Telecommunications Union (UN)

American National Standards Institute. ANSI administers and coordinates the U.S. voluntary standardization and conformity assessment system for the
telecommunications industry. More details on these standards may be
viewed at www.ansi.org.

See Programmable Protocol Language.

Functional Description of TCAP

ITU-TSS Publication on TCAP Procedures

Digital communications link - voice, data, and video at a 1.544 Mbps rate (24 64 Kbps channels)

ANSI Publication on SCCP

The protocol used in most local area PC networks. Typically, most Ethernet networks support data transmission speeds up to 10 Mbps, but 100 Mbps is also possible.

The point in the Excel platform where a DS0 connects to a network. Also known as a "socket."

See Common Channel Signaling.

See Circuit Identification Codes.

See Request For Service.

In PPL, a condition that, when met, drives a state machine (PPL Component) from one state to another, by invoking an associated Primitive. In PPL files, an Event is marked by an arrow and text.

Range of channels provided by T1 or E1 transmission service. A physical span is a group of channels taking up a single physical wire. A logical span is a group of channels taking up less than a single logical wire, or carried over more than one physical wire.